Well drilling rig attachment



May 4, 1937. A. A. HALDEMAN V WELL DRILLING RIG ATTATCHMENT Filed March 28, 1936 2 Sheets-Sheet l [nvenlor M I A Norm ls May A. A. HALDEMAN WELL DRILLING RIG ATTATCHMENT Filed March 28, 1936 if 23 II ll 14 I f i /0 1 ,HI

2 Sheets-Sheet 2 Invenlor A. 1. flaidew Patented May 4, 1937 PATENT OFFICE WELL DRILLING are. ATTACHMENT Albert A. Haldeman, Seiling, Okla, assignor of one-half to Ralph Kans.

Application March 28,

'5 Claims.

This invention relates to well drilling rigs and more particularly to an attachment for said rigs whereby the drilling of a well at an angle to the perpendicular maybe readily and easily 8 accomplished.

' As is'well known because of certain restrictions and other physical inaccessibilities. it is impossible, when drilling in restricted areas to place the derrick and drilling equipment directly over the point of production, and where this is the case it is necessary to drill at an angle to theperpendicular. In accordance with the present invention means is provided for attachment to the drill'rig for guiding and supporting the drilling tool in a manner to enable the operator to dig the well at an angle to the perpendicular.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure 1 is'a side elevational view illustrating the application of the invention.

Figure 2 is a detail sectional view taken sub stantiaiiy on the line 2-2 of Figure 3.

Figure 3 is an elevational View of one of the sections of a drill string and showing a guide applied thereto.

Figure 4 is an elevational view showing oil sleeves applied to one of the sections of the drill string.

Figure 5 is a sectional view taken substantially on the line 5-5 of Figure 3. v Figure 6 is an elevational view on a small scale illustrating certain parts of the attachment as applied to the well rig. v

Figure 7 is an elevational view of a roller equipped member forming part of theinvention.

Figure 8 is a view partly in section and partly in elevation illustrating certain details hereinafter more fully referred to.

Figure 9 is a view partly in section and partly in elevation showing the application of a roller equipped member to the kelly rod, and

Figure 10 isa detail sectional ,view taken subv stantially on the line l0--i0 of Figure it.

Referring to the drawings by reference numerals it will be seen that 5 indicates generally a conventional drill rig which is equipped with suitable cable means 6 for raising and lowering the kelly rod indicated generauy by the reference numeral 1. The rod 1 as. is conventional operates through the turntable or similar device 8 which forms part of the mechanism for rotating the kelly' rod during the drilling oper ation.

E. Gilchrist, Wichita,

1936, Serial No. 71,472

In accordance with the present invention there is provided a trackway comprising a pair of opposed angle ircn tracks 8 which are supported at the desired angle to the perpendicular and at one side of the rig 5 through a vertical series of 5 spaced substantially V-sh'aped brackets iii the sides of which are secured to the corner post of the rig 5 as at ll.

Each of the members III as shown in Figure 8 have secured to opposite sides thereof and ex- 10 tending inwardly from said side bars or arms it the innerends of which are suitably secured to the rails 9. Further the rails 8 and bars I! are braced with respect to the sides of each member i0 through the medium of brace bars l3. 7

For connecting the swivel M at the upper end .of the' kelly rod with one end of the cable 6 there is provided a connector which as "best shown in Figure 1 consists of a body member I5 provided at its respective opposite ends with 20 hooks l6 and I1, hook l6 engaging in a suitable eye or loop formed in one end of the cable 6,

v and hook I! engaging an eye forming part of the swivel it as shown in Figure 1.

Projecting from one side of the member l5 are 25 suitable arms 18 the outer ends oi which are equipped with pairs of rollers l9 that ride on the rails 9 as shown in Figure 8. e

' Further in accordance with the present invention the kelly rod I intermediate its ends and 30 as shown in Figure 10 is provided with a fixed circular collar 20 that is received within the groove formed in the inner edges of the complementai sections of a two-part clamp 2|.

Clamp 2| as shown in Figure 9 has the sec- '35 tions thereof pivotally connected together at one end as at 22 andthe free ends of the sections of the clamp are detachably connected together in any suitable manner and as indicated generallyat 23. I

Projecting radially from one section of the clamp 2i is an arm 24 on the free end of which are suitably mounted rollers 25 which also ride on the. tracks 9 as shown in Figure 1.

It will be further appreciated that through 45 the provision of the circular collar 20 and the clamp 2| the clamp and roller assembly as shown in Figure 9 may move with the kelly rod 1 during the raising and lowering of the latter but at the same time rotative movement of the kelly 50 rod I and the drill string may be accomplished without any interference on the part of the roller and clamp assembly. Further in accordance with the present invention to insure the drilling of a straight'hole of 55 uniform diameter and thereby prevent bend or "crooks occurring in the hole during the drilling operation, each section 26 of the drill string,

which sections are coupled together in the usual manner and indicated generally at 27 is equipped with a guide device of the type shown in Figure 2.

As illustrated in the preferred embodiment thereof the entire device comprises a sleeve 28 that is sleeved on to a drill string section. 26 and disposed intermediate of the ends of the section. The sleeve 28 as shown in Figure 4 is externally provided with diagonal oil grooves 29. Disposed about the sleeve 281s a substantially cylindrical body member 30 which is of the cross sectional and end elevational shape shown respectively in Figures 2 and 5. The member 30 is clamped on the sleeve 28 through the medium of upper and lower nuts 3| that are threaded on the respective opposite ends of the sleeve 28 as shown in Figure 2.

In the upper and lower ends thereof the member 30 is provided with a circular recess, and arranged in each recem is an annular oil retainer 32 of any suitable material held in set position about an adjacent portion of the sleeve straight hole free of any bend or the like.

Further-in actual practice it will be apparent that with the rollers l9 and 25 riding along the track 9 disposed at the desired incline or angle relative to the perpendicular the drilling of a hole at an-angle to the perpendicular maybe vetliciently accomplished.

Having thus described the invention, what. is claimed as new is:

1. In a well drilling apparatus, the combination with adrilling rig, a kelly rod and an operating cable, of a guide structure mounted-on one side of the drill rig and including a trackway disposed at an angle to the'perpendicular, a member operatively connecting one end of the cable with the kelly rod, said member having arms projecting therefrom and rollers on the ends of the arms riding in said trackway, said kelly rod intermediate its endsbeing also provided with a fixed circular collar, a clamp embracing said collar, said clamp having an arm projecting therefrom, and rollers on the free end of said arm operating in said track.

2. For use in drilling bore holes of the class described and at an angle to the perpendicular, a guide structure adapted to be mounted on a well drilling rig, said guide structure including spaced track rails disposed at an angle to the perpendicular, a kelly rod, said kelly rod having a circular collar intermediate its ends, a twopart clamp embracing said collar, said clamp having an arm extending therefrom, and rollers on the free end of said arm ridable along said track rails. v

3. A well drilling apparatus in combination with a derrick, a guideway having support by the derrick at an inclined angle to the perpendicular axis of the derrick,- a tackle mechanism suspended from the derrick, a kelly rod, a swivel head connecting the kellyrod with the tackle mechanism, means mounting the tackle mechanism for reciprocative support on .the guideway, a guide clamp for engagingly supporting the kelly rod, means mounting the guide clamp for reciprocative movement in alignment with the tackle mechanism, and means for rotating the kelly rod.

4. A well drilling apparatus in combination with a derrick, a guideway having support by the derrickat an incline to the perpendicular axis 'of the derrick, a tackle mechanism suspended from the derrick, a kelly rod, a swivel head connecting the kelly rod with the tackle mechanism, means mounting the tackle mechanism for reciprocative support on the guideway, a guide clamp for engagingly supporting the kelly rod,

means mounting the guide clamp for reciprocative movement on the guideway, and means for tackle mechanism with the kelly rod, a carriage mounted on the guide track and connected with the tackle mechanism, a guide'clamp engagingly supporting the kelly rod, a second carriage mounted onthe guide track for reciprocatively 1 supporting the guide clamp, and means for rotating the kelly'rod.

., ALBERT a. HALDEMAN. 

